Chapter 16/17 Review Answer Key

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The deepest region of the epidermis is the

Basal layer

Increased growth of cells in the horny (keratinized) layer of the epidermis

Callus

Clouding of the lens; causing decreased vision

Cataract

Intensely unpleasant burning sensation in skin

Causalgia

Waxy substance secreted by the external ear

Cerumen

Structural protein found in the skin and connective tissue

Collagen

Delicate membrane lining the eyelids and covering the anterior eyeball

Conjuctiva

Bedsore

Decubitus ulcer

Scraping away if skin (to remove tattoos or fine wrinkles)

Dermabrasion

Double vision

Diplopia

Most numerous of sweat producing glands in the skin

Eccrine sweat gland

Fluid within the labyrinth of the ear

Endolymph

Inward deviation of the eye

Esotropia

Channel between the middle ear and the nasopharynx

Eustachian tube

Outward deviation of the eye

Exotropia

Groove or crack-like sore

Fissure

Death of tissue associated with loss of blood supply

Gangrebe

Sac within which each hair grows

Hair follicle

Loss of vision in one half of the visual field

Hemianopsia

Localized purulent infection of a sebaceous gland in the eyelid

Hordeolum (stye)

The skin and it's accessory structures, such as hair and nails

Integumentary system

Abnormal condition of thickened area of the epidermis

Keratosis

Inflammation of skin with yellow or brown gray greasy scales (dandruff)

Seborrheic dermatitus

An oily substance secreted by sebaceous glands is

Sebum

Abnormal deviation of the eye (esotropia and exotropia)

Strabismus

The outermost layer of the epidermis, consisting of flattened keratinized cells is the

Stratum corneum

Absence of the lens of the eye

Aphakia

Large dermal exocrine gland; located in axilla and genitals

Apocrine sweat gland

Fluid produced by the ciliary body; circulates through the anterior chamber of the eye

Aqueous humor

Defective curvature of the cornea or lens of the eye

Astigmatism

Channel leading from the outer ear flap to the eardrum

Auditory meatus

Malignant tumor of cells in the epidermal layer of the skin

Basal cell carcinoma

Popular and pustular eruption of the skin; comedones occur

Acne

A fat cell is a/an

Adipocyte

Condition of absence of pigment in the skin

Albinism

Baldness

Alocepia

Condition of white plaques (spots or patches) on the tongue or cheek

Leukoplakia

Progressive damage to the yellowish region on the retina (lateral to and slightly below the optic disc)

Macular degeneration

Flat lesion, measuring less than 1 cm in diameter; freckle

Macule

Pigment that gives the skin color

Melanin

Nearsightedness

Myopia

Point at which optic nerve fibers cross in the brain

Optic chiasm

Region at the back of the eye where the optic nerve meets the retina

Optic nerve

Sensitive auditory receptive area in the cochlea of the inner ear

Organ of corti

Hardening of bony tissue in the inner ear; ankylosis of the stapes may occur

Otosclerosis

Membrane between the middle and inner ear

Oval window

A small solid elevation of the skin (pimple)

Papule

Small (less than 1 cm in diameter) solid elevation of the skin

Papule

Growth extending from the surface of a mucous membrane

Polyp

Impairment of vision due to old age

Presbyopia

Itching

Pruritus

Chronic, recurrent dermatosis marked by itchy, scaly, red patches covered by silvery, gray scales

Psoriasis

Large areas of bleeding under the skin

Purpura

Papule containing pus

Pustule

Bending of light rays by the cornea, lens, and fluids of the eye to bring them into focus on the retina

Refraction

Infection of the skin caused by a fungus

Tinea

Eardrum

Tympanic membrane

Inflammation of the vascular layer of the eye

Uveitis

Sensation of irregular or whirling motion either of oneself or of external objects

Vertigo

Small collection of clear fluid (serum); blister

Vesicle

Loss of pigment in areas of the skin

Vitiligo

Jelly like material behind the lens; helps to maintain the shape of the eyeball

Vitreous humor

A smooth, slightly elevated, edematous area that is redder or paler than the surrounding skin

Wheal

Condition of dry eyes

Xerophthalmia

Blush black marks on the skin caused by hemorrhages into the skin

ecchymoses


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